Well-boring apparatus.



W. W. WILSON.

WELL BORING AP-PAR ATUS.

APPLICATION FILED AUG-T7, 1914- l ,2? 6,471 Patented Aug 20, 191&

z y (w! HIS ATTORNEY.

. "W I TNESSASEIS WILLIAM w. WILSON, or Los mourns, CALIFORNIA,

' WELL-BORING APPARATUS.-

To all whomit may concern:

Be it known that 1, WILLIAM W. WILSON, a citizen of the United States,residing at Los Angeles, in the county of Los Angeles and State ofCalifornia, have invented new and useful Improvements in WVell-BormgApparatus, of which the following is a specification. 1

This invention relates to Well boring. apparatus, and more particularlyto swivels, or hydraulic swivels, for rotary well drilling or boringapparatus whereby the rotary boring or drilling string is suspendedduring the rotary operation, and the invention has for its object toprovide improvements in such swivels which will be superior in point ofrelative simplicity and inexpenslveness of construction, facility inassemblage,conven-,

'ience in adjustment, elimination of added and otherwiseunnecessaryparts, durability,

positiveness in operation, and compactness in form; and which Will begenerally superior in efficiency and serviceability.

Such swivels as now constructed in ordi- "nary practice include a swivelstem which is jointed on to the boring string whereby the boring bit ortool is rotated in the well hole. Usually a plurality of collars orcoupling links are employed to joint the swivel stem with the boringstring, The possibility of disconnection at this point is a seriousobjection to this type of construction. In accordance with the presentinvention I em ploy means for applying the boring string or uppersection or joint of the boring string directly to the swivel cross-headand attendant features, entirely eliminating the swivel stem as such.Certain other features are provided which, taken together, secure theadvantages and features of improvement which are desiderata as abovepointed out.

The invention consists in the novel and useful provision, formation,construction,

combination, association and relative ar-- Specification of LettersPatent.

Patented Aug. 20, rain.

Application filed August 17, 1914. Serial No. 857,092.

Fig. 3 is a similar view taken upon the line m w Fig. l; and Fig. at isan enlarged detail View, similar to Fig. 1, of features of constructionpertinent to the upper end of the boring stem and adjacent parts of theswivel.

Corresponding parts in all the figures are designated by the samereference characters.

Referring with particularity to the drawing, A designates a rotary topor table, of conventional form, the same being mounted upon a base frameB which is installed at or surrounding the mouth of the well hole, theearth formation of the well hole being shown at O. D designates meansfor rotating the 7 top of the table, from any suitable prime mover, thesame means including a bevel pinion 5 meshing with a bevel annular rack6. E designates the boring string stem whichis rotated by the top ortable A, being shown specifically as consisting of asquare hollow bodyor vertical shaft 7 which-fits into a similar equared opening centralofthe table or top A, the base frame B being provided with similar centralopening through which the stem plays and within which it rotates, thejoints or lengths of pipe, of which the upper one is shown at F, beingconnected on to the lower end of the stem E. The upper end of the saidstem E is cylindrical in formation, as at 8, and is.

fitted into a sleeve 9 depending from or formed upon an annular bearingplate 10, such bearing plate being held to the cyline drical top portion8 of the stem E by a two piece annular-thrust plate 11 which fits withina reduced portion or annular channel 12 in the upper portion of, thestem portion 8,

slightly below the extreme top thereof."

This thrust plate in its two halves is secured to the bearing plate 10detachably by bolts 13 or other suitable holding devices. The bearingplate is provided with a hardenedwearing surface ring 10 set into itslower face and between which and a similar surface ring 14 are providedanti-friction devices, such as balls 15; the surface plate 14sbeing setintothe upper face of an annular swivel cross-head 14 which isprovidedfrom the hook supplied for that purpose'in arsen which receivesthe rota-tire drive; said hearing plate being applied to said stringmemher intermediate of the ends thereof.

at. In a rotary Well boring apparatus, a boring string, and a swivel;said swivel being provided with a hearing plate directly connected witha member of the boring string; said hearing plate heing applied to saidstring member intermediate of the ends thereof, said string memberhaving :1 diminished portion receiving a detachable member upon thehearing plate and said detachable member whereby the bearing plateisdirectly connected with said member of the hon'ng string.

5. ln rotary Well boring apparatus, a swivel comprising two relativelyrotative members, a stem rotatively received at its upper end in one ofsaid members, a gland adjustahly mounted upon the upper end of the stem,and a Wash pipe entering the stem through the gland; and an apronsurrounding the gland for directing fluid passing the gland downwardlyand outwardly.

B. In .rot-ary Well boring apparatus,

swivel comprising relatively rotative memend of the stem for directingfluid escaping the gland downwardly and outwardly; said member beingprovided with a crown inclosing the gland and apron and having anopening for escaping fluid.

8. in rotary Well boring apparatus, a swivel comprising relativelyrotative members, a stem rotatively received in'one of said members, agasket at the upper end of said stem, :1 gland within the gasket andmounted upon the stem, and an apron at the upper end of the stem fordirecting fluid escaping the gland downwardly and outwardly; said memberbeing provided with a crown inclosing the gland and apron and having anopening for escaping fluid; in combination with a Wash pipe entering thegland and held in position by said crown.

9. in rotary well boring apparatus, a

swivel comprising two relatively rotativemembers, one of said membersconstituting the swivel cross-head, the other comprising an annularhearing plate rota-tively mounted upon said swivel cross-head andprovided with a sleeve fitting Within an opening in the cross-head, astem fitting Within the sleeve, and detachable means applied to thehearing plate and entering a reduced portionin the stem to hold the stemand hearing plate together in rotative couple.

lln testimony whereof, I have signed my name to this specification inthepresence of two subscribing Witnesses.

WELIAM W. WILSUN.

Witnesses:

"from Fmnrv, Armin) H. DAEHLER.

